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| author |   William Dauchy <w.dauchy@criteo.com> | 2020-03-27 19:56:39 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-03-29 22:16:27 -0700 |
| commit | 25629fdaff2ff509dd0b3f5ff93d70a75e79e0a1 (patch) | |
| tree | d41a8e35c562b821cc07b38c5673e2e6a473c492 /net/unix/af_unix.c | |
| parent | sctp: fix possibly using a bad saddr with a given dst (diff) | |
| download | wireguard-linux-25629fdaff2ff509dd0b3f5ff93d70a75e79e0a1.tar.xz wireguard-linux-25629fdaff2ff509dd0b3f5ff93d70a75e79e0a1.zip | |
net, ip_tunnel: fix interface lookup with no key
when creating a new ipip interface with no local/remote configuration,
the lookup is done with TUNNEL_NO_KEY flag, making it impossible to
match the new interface (only possible match being fallback or metada
case interface); e.g: `ip link add tunl1 type ipip dev eth0`
To fix this case, adding a flag check before the key comparison so we
permit to match an interface with no local/remote config; it also avoids
breaking possible userland tools relying on TUNNEL_NO_KEY flag and
uninitialised key.
context being on my side, I'm creating an extra ipip interface attached
to the physical one, and moving it to a dedicated namespace.
Fixes: c54419321455 ("GRE: Refactor GRE tunneling code.")
Signed-off-by: William Dauchy <w.dauchy@criteo.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions